I just got a new serger. It is a Brother Imagine. It will thread all 4 threads. I had a regular type serger that I had to thread myself and it was so much trouble that I didn't use it. As soon as I got this new one I gave the old one away. The feature of never having to thread the lower loopers or even having to thread the upper needles is wonderful! It came with a set of accessories. All I have used so far is the ruffler, but I have never made ruffles so easy in my life. One step make the ruffle and attach it to the fabric and finish the seam = all in one pass thru the serger. The purchase price includes instruction and a warranty plus the first cleaning and "tune-up" at the end of the year. At any time I am having trouble with it, either understanding how to do something, or if I have jammed it up somehow, all I have to do is take it in and they will fix it. It cost less than my husbands last set of golf clubs, about the same as a week and a half at a nice hotel or a week at a very nice hotel. And it will probably last the rest of my lifetime. I haven't had this much fun sewing ever!!